title: 2,2'-{[2-(2-Hy-droxy-phen-yl)-4-methyl-imidazolidine-1,3-di-yl]bis-(methyl-ene)}diphenol.
abstract: The asymmetric unit in the title compound, C24H26N2O3, comprises two independent mol-ecules (A and B). In molecule A, the central 2-hydroxyphenyl ring is inclined to the mean plane of the major component of the imidazolidine ring by 84.52 (14)°, and by 68.08 (9) and 47.48 (9)° to the outer phenol rings. The later are inclined to one another by 66.76 (9)° and by 78.12 (14) and 80.20 (14)° to the imidazoline ring mean plane. In molecule B, the central 2-hydroxyphenyl ring is inclined to the mean plane of the imidazolidine ring by 73.64 (10)°, and by 75.60 (8) and 38.32 (9)° to the outer phenol rings. The later are inclined to one another by 69.47 (9)° and by 82.60 (10) and 64.26 (10)° to the imidazolidine ring mean plane. In each of the independent mol-ecules, two intra-molecular O-H⋯N hydrogen bond form S(6) ring motifs. In disordered mol-ecule A, the O-H groups of the 2-hy-droxy-benzyl groups are also involved in intra-molecular O-H⋯O hydrogen bonds, with the O atom of the hy-droxy-phenyl group acting as the acceptor. In the crystal, A molecules are linked by pairs of O-H⋯O hydrogen bonds forming inversion dimers. These dimers are linked to the B molecules via O-H⋯O hydrogen bonds forming double-layered slabs lying parallel to the bc plane.
authors.affiliation: Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Cra 30 No. 45-03, Bogotá, Código Postal 111321, Colombia.
authors.forename: Augusto
authors.initials: A
authors.lastname: Rivera
authors.forename: Lorena
authors.initials: L
authors.lastname: Cárdenas
authors.forename: Jaime
authors.initials: J
authors.lastname: Ríos-Motta
authors.forename: Monika
authors.initials: M
authors.lastname: Kučeráková
authors.forename: Michal
authors.initials: M
authors.lastname: Dušek